You shouldn't need the @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) line since you're using a key name and not a String-encoded ID.
The only thing that looks suspicious is your pmf object. The best practice is to use a PersistenceManagerFactory singleton as documented at http://code.google.com/appengine/docs/java/datastore/usingjdo.html#Getting_a_PersistenceManager_Instance, but I would expect to see exceptions with subsequent calls to saveUser, not the first call. All the same, I recommend you try this to see if it helps, and please also let me know which version of the SDK you're using. - Jason On Thu, Sep 10, 2009 at 1:09 AM, bysse <[email protected]> wrote: > > As expected, this has nothing to do with wicket or sessions, just to > be sure i've checked those. If fact, all entities get persisted as > they should and the exception is caught somewhere in makePersistent. > So as far as i know, no harm is done(?) > So i think i'll just ignore this stacktrace and continue as usual. > > > On Sep 10, 12:22 am, bysse <[email protected]> wrote: > > I also get this exception, but only on the first call to > > makePersistent. > > > > First Call: > > Exception > > Store objects ? > > Later Calls > > Ok > > Stores objects > > > > Can't think of anything that causes this. I'm using Wicket, how about > > you? > > > > /Erik > > > > On Sep 8, 7:48 pm, cancunmods <[email protected]> wrote: > > > > > I am having trouble saving an object on google app engine. Here is my > > > POJO class: > > > > > package subasta.domain.users; > > > > > import javax.jdo.annotations.IdentityType; > > > import javax.jdo.annotations.PersistenceCapable; > > > import javax.jdo.annotations.PrimaryKey; > > > import javax.jdo.annotations.Persistent; > > > > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > > > public class User { > > > @PrimaryKey > > > @Persistent > > > private String nombre; > > > > > public User(String nombre){ > > > this.nombre = nombre; > > > } > > > > > public String getNombre() { > > > return nombre; > > > } > > > > > public void setNombre(String nombre) { > > > this.nombre = nombre; > > > } > > > > > } > > > > > Here is my JDO Code.: > > > > > package subasta.repository.users; > > > > > import java.util.Set; > > > import java.util.logging.Logger; > > > > > import javax.jdo.JDOHelper; > > > import javax.jdo.PersistenceManagerFactory; > > > import javax.jdo.PersistenceManager; > > > > > import subasta.domain.users.User; > > > > > public class JDOUserDAO implements UserDAO{ > > > /** Logger for this class and subclasses */ > > > private static final Logger log = Logger.getLogger(UserDAO.class > > > .getName()); > > > > > private static final PersistenceManagerFactory pmf = > > > JDOHelper.getPersistenceManagerFactory("transactions- > > > optional"); > > > > > //PersistenceManagerFactory pmf; > > > > > //public void setPmf(PersistenceManagerFactory pmf) { > > > //this.pmf = pmf; > > > //} > > > > > public void saveUser(User user){ > > > PersistenceManager pm = pmf.getPersistenceManager(); > > > try{ > > > pm.makePersistent(user); > > > }finally { > > > pm.close(); > > > } > > > } > > > > > @SuppressWarnings("unchecked") > > > public Set<User> getUsers(){ > > > PersistenceManager pm = pmf.getPersistenceManager(); > > > Set<User> users = (Set<User>)pm.getManagedObjects > > > (User.class); > > > pm.close(); > > > return users; > > > } > > > > > } > > > > > Things go wrong when making the call tomakePersistent. The exception > > > is: > > > > > 08-sep-2009 16:51:35 > > > > com.google.appengine.repackaged.com.google.common.base.FinalizableReferenceQueue > > > <init> > > > INFO: Failed to start reference finalizer thread. Reference cleanup > > > will only occur when new references are created. > > > java.lang.reflect.InvocationTargetException > > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > > at sun.reflect.NativeMethodAccessorImpl.invoke > > > (NativeMethodAccessorImpl.java:39) > > > at sun.reflect.DelegatingMethodAccessorImpl.invoke > > > (DelegatingMethodAccessorImpl.java:25) > > > at java.lang.reflect.Method.invoke(Method.java:597) > > > at > > > > com.google.appengine.repackaged.com.google.common.base.FinalizableReferenceQueue.<init> > > > (FinalizableReferenceQueue.java:124) > > > at > > > > com.google.appengine.repackaged.com.google.common.labs.misc.InterningPools > > > $WeakInterningPool.<clinit>(InterningPools.java:104) > > > at > > > > com.google.appengine.repackaged.com.google.common.labs.misc.InterningPools.newWeakInterningPool > > > (InterningPools.java:48) > > > at > > > > com.google.appengine.repackaged.com.google.io.protocol.ProtocolSupport.<clinit> > > > (ProtocolSupport.java:55) > > > at com.google.apphosting.api.DatastorePb$PutRequest.freeze > > > (DatastorePb.java:8452) > > > at com.google.apphosting.api.DatastorePb$PutRequest$1.<init> > > > (DatastorePb.java:8367) > > > at com.google.apphosting.api.DatastorePb$PutRequest.<clinit> > > > (DatastorePb.java:8364) > > > at com.google.appengine.api.datastore.DatastoreServiceImpl.put > > > (DatastoreServiceImpl.java:152) > > > at com.google.appengine.api.datastore.DatastoreServiceImpl.put > > > (DatastoreServiceImpl.java:138) > > > at com.google.appengine.api.datastore.DatastoreServiceImpl.put > > > (DatastoreServiceImpl.java:130) > > > at > > > > org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.put > > > (RuntimeExceptionWrappingDatastoreService.java:93) > > > at org.datanucleus.store.appengine.DatastorePersistenceHandler.put > > > (DatastorePersistenceHandler.java:165) > > > at org.datanucleus.store.appengine.DatastorePersistenceHandler.put > > > (DatastorePersistenceHandler.java:112) > > > at > > > > org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects > > > (DatastorePersistenceHandler.java:239) > > > at > > > > org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject > > > (DatastorePersistenceHandler.java:225) > > > at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent > > > (JDOStateManagerImpl.java:3185) > > > at org.datanucleus.state.JDOStateManagerImpl.makePersistent > > > (JDOStateManagerImpl.java:3161) > > > at org.datanucleus.ObjectManagerImpl.persistObjectInternal > > > (ObjectManagerImpl.java:1298) > > > at org.datanucleus.ObjectManagerImpl.persistObject > > > (ObjectManagerImpl.java:1175) > > > at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent > > > (JDOPersistenceManager.java:669) > > > at org.datanucleus.jdo.JDOPersistenceManager.makePersistent > > > (JDOPersistenceManager.java:694) > > > at subasta.repository.users.JDOUserDAO.saveUser(JDOUserDAO.java: > > > 29) > > > at subasta.web.users.RegisterController.onSubmit > > > (RegisterController.java:38) > > > at > > > org.springframework.web.servlet.mvc.SimpleFormController.onSubmit > > > (SimpleFormController.java:409) > > > at > > > org.springframework.web.servlet.mvc.SimpleFormController.onSubmit > > > (SimpleFormController.java:381) > > > at > > > > org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission > > > (SimpleFormController.java:267) > > > at > > > > org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal > > > (AbstractFormController.java:265) > > > at > > > org.springframework.web.servlet.mvc.AbstractController.handleRequest > > > (AbstractController.java:153) > > > at > > > > org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle > > > (SimpleControllerHandlerAdapter.java:48) > > > at org.springframework.web.servlet.DispatcherServlet.doDispatch > > > (DispatcherServlet.java:875) > > > at org.springframework.web.servlet.DispatcherServlet.doService > > > (DispatcherServlet.java:807) > > > at org.springframework.web.servlet.FrameworkServlet.processRequest > > > (FrameworkServlet.java:571) > > > at org.springframework.web.servlet.FrameworkServlet.doPost > > > (FrameworkServlet.java:511) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > > > at org.mortbay.jetty.servlet.ServletHolder.handle > > > (ServletHolder.java:487) > > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > > (ServletHandler.java:1093) > > > at > > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter > > > (TransactionCleanupFilter.java:43) > > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > > (ServletHandler.java:1084) > > > at com.google.appengine.tools.development.StaticFileFilter.doFilter > > > (StaticFileFilter.java:121) > > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > > (ServletHandler.java:1084) > > > at org.mortbay.jetty.servlet.ServletHandler.handle > > > (ServletHandler.java:360) > > > at org.mortbay.jetty.security.SecurityHandler.handle > > > (SecurityHandler.java:216) > > > at org.mortbay.jetty.servlet.SessionHandler.handle > > > (SessionHandler.java:181) > > > at org.mortbay.jetty.handler.ContextHandler.handle > > > (ContextHandler.java:712) > > > at org.mortbay.jetty.webapp.WebAppContext.handle > > > (WebAppContext.java:405) > > > at > > > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > > > (DevAppEngineWebAppContext.java:54) > > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > > (HandlerWrapper.java:139) > > > at com.google.appengine.tools.development.JettyContainerService > > > $ApiProxyHandler.handle(JettyContainerService.java:313) > > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > > (HandlerWrapper.java:139) > > > at org.mortbay.jetty.Server.handle(Server.java:313) > > > at org.mortbay.jetty.HttpConnection.handleRequest > > > (HttpConnection.java:506) > > > at org.mortbay.jetty.HttpConnection$RequestHandler.content > > > (HttpConnection.java:844) > > > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) > > > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java: > > > 205) > > > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java: > > > 381) > > > at org.mortbay.io.nio.SelectChannelEndPoint.run > > > (SelectChannelEndPoint.java:396) > > > at org.mortbay.thread.BoundedThreadPool$PoolThread.run > > > (BoundedThreadPool.java:442) > > > Caused by: java.security.AccessControlException:accessdenied > > > (java.lang.RuntimePermission modifyThreadGroup) > > > at java.security.AccessControlContext.checkPermission > > > (AccessControlContext.java:323) > > > at java.security.AccessController.checkPermission > > > (AccessController.java:546) > > > at java.lang.SecurityManager.checkPermission(SecurityManager.java: > > > 532) > > > at com.google.appengine.tools.development.DevAppServerFactory > > > $CustomSecurityManager.checkPermission(DevAppServerFactory.java:139) > > > at com.google.appengine.tools.development.DevAppServerFactory > > > $CustomSecurityManager.checkAccess(DevAppServerFactory.java:166) > > > at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:288) > > > at > > > > ... > > > > read more ยป > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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